High‐Efficiency Fiber‐Chip Edge Coupler for Near‐Ultraviolet Integrated Photonics
Yuhan Du,
Xingchen Ji,
Weiqiang Xie
et al.
Abstract:Integrated photonics is demanded in applications operating at ultraviolet to visible wavelengths, such as atomic/quantum systems, on‐chip broadband receivers, and far‐field structured illumination autofluorescence microscopy. A fundamental challenge in these applications is efficient edge coupling from a single‐mode fiber (SMF) to on‐chip photonic components, which is critical for on‐chip integration. In this paper, a high‐efficiency edge coupler based on an alumina‐on‐insulator platform is introduced and expe… Show more
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